Here's demo video of what West Clock Town >> Termina >> Snow Mountain.
Of course you'll quickly realise that I've done this in real time on PJ64, so its highly unoptimized if I'm putting it lightly.
Here's some points
1. Go down the slope at a skewed angle
2. Whip out a bomb, do a blind backwalk towards the slope in Snow Mountain, and superslide at the last frame, this is mainly becuase of the leevers. The Dondongo can be manipulated to give a favourable collision boost.
3. I don't superslide here but superslide up the slope none the less
4. I was wrong about the navi text here, its probally best to backwalk, while whipping out a bomb and doing an endless sword technique on the bomb.
5. Back walk towards glacier, it might be better to do it so that Link is facing more towards Ikana on the left so you can quickly side-step to SnowMountain
Here is the
AVI